<?php

if (!defined('BASEPATH'))
  exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package		CodeIgniter
 * @author		ExpressionEngine Dev Team
 * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license		http://codeigniter.com/user_guide/license.html
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */
if (!function_exists('xml_parser_create')) {
  show_error('Your PHP installation does not support XML');
}


// ------------------------------------------------------------------------

/**
 * XML-RPC request handler class
 *
 * @package		CodeIgniter
 * @subpackage	Libraries
 * @category	XML-RPC
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/libraries/xmlrpc.html
 */
class CI_Xmlrpc {

  var $debug = FALSE; // Debugging on or off
  var $xmlrpcI4 = 'i4';
  var $xmlrpcInt = 'int';
  var $xmlrpcBoolean = 'boolean';
  var $xmlrpcDouble = 'double';
  var $xmlrpcString = 'string';
  var $xmlrpcDateTime = 'dateTime.iso8601';
  var $xmlrpcBase64 = 'base64';
  var $xmlrpcArray = 'array';
  var $xmlrpcStruct = 'struct';
  var $xmlrpcTypes = array();
  var $valid_parents = array();
  var $xmlrpcerr = array(); // Response numbers
  var $xmlrpcstr = array();  // Response strings
  var $xmlrpc_defencoding = 'UTF-8';
  var $xmlrpcName = 'XML-RPC for CodeIgniter';
  var $xmlrpcVersion = '1.1';
  var $xmlrpcerruser = 800; // Start of user errors
  var $xmlrpcerrxml = 100; // Start of XML Parse errors
  var $xmlrpc_backslash = ''; // formulate backslashes for escaping regexp
  var $client;
  var $method;
  var $data;
  var $message = '';
  var $error = '';  // Error string for request
  var $result;
  var $response = array();  // Response from remote server
  var $xss_clean = TRUE;

  //-------------------------------------
  //  VALUES THAT MULTIPLE CLASSES NEED
  //-------------------------------------

  public function __construct($config = array()) {
    $this->xmlrpcName = $this->xmlrpcName;
    $this->xmlrpc_backslash = chr(92) . chr(92);

    // Types for info sent back and forth
    $this->xmlrpcTypes = array(
        $this->xmlrpcI4 => '1',
        $this->xmlrpcInt => '1',
        $this->xmlrpcBoolean => '1',
        $this->xmlrpcString => '1',
        $this->xmlrpcDouble => '1',
        $this->xmlrpcDateTime => '1',
        $this->xmlrpcBase64 => '1',
        $this->xmlrpcArray => '2',
        $this->xmlrpcStruct => '3'
    );

    // Array of Valid Parents for Various XML-RPC elements
    $this->valid_parents = array('BOOLEAN' => array('VALUE'),
        'I4' => array('VALUE'),
        'INT' => array('VALUE'),
        'STRING' => array('VALUE'),
        'DOUBLE' => array('VALUE'),
        'DATETIME.ISO8601' => array('VALUE'),
        'BASE64' => array('VALUE'),
        'ARRAY' => array('VALUE'),
        'STRUCT' => array('VALUE'),
        'PARAM' => array('PARAMS'),
        'METHODNAME' => array('METHODCALL'),
        'PARAMS' => array('METHODCALL', 'METHODRESPONSE'),
        'MEMBER' => array('STRUCT'),
        'NAME' => array('MEMBER'),
        'DATA' => array('ARRAY'),
        'FAULT' => array('METHODRESPONSE'),
        'VALUE' => array('MEMBER', 'DATA', 'PARAM', 'FAULT')
    );


    // XML-RPC Responses
    $this->xmlrpcerr['unknown_method'] = '1';
    $this->xmlrpcstr['unknown_method'] = 'This is not a known method for this XML-RPC Server';
    $this->xmlrpcerr['invalid_return'] = '2';
    $this->xmlrpcstr['invalid_return'] = 'The XML data received was either invalid or not in the correct form for XML-RPC.  Turn on debugging to examine the XML data further.';
    $this->xmlrpcerr['incorrect_params'] = '3';
    $this->xmlrpcstr['incorrect_params'] = 'Incorrect parameters were passed to method';
    $this->xmlrpcerr['introspect_unknown'] = '4';
    $this->xmlrpcstr['introspect_unknown'] = "Cannot inspect signature for request: method unknown";
    $this->xmlrpcerr['http_error'] = '5';
    $this->xmlrpcstr['http_error'] = "Did not receive a '200 OK' response from remote server.";
    $this->xmlrpcerr['no_data'] = '6';
    $this->xmlrpcstr['no_data'] = 'No data received from server.';

    $this->initialize($config);

    log_message('debug', "XML-RPC Class Initialized");
  }

  //-------------------------------------
  //  Initialize Prefs
  //-------------------------------------

  function initialize($config = array()) {
    if (count($config) > 0) {
      foreach ($config as $key => $val) {
        if (isset($this->$key)) {
          $this->$key = $val;
        }
      }
    }
  }

  // END
  //-------------------------------------
  //  Take URL and parse it
  //-------------------------------------

  function server($url, $port = 80) {
    if (substr($url, 0, 4) != "http") {
      $url = "http://" . $url;
    }

    $parts = parse_url($url);

    $path = (!isset($parts['path'])) ? '/' : $parts['path'];

    if (isset($parts['query']) && $parts['query'] != '') {
      $path .= '?' . $parts['query'];
    }

    $this->client = new XML_RPC_Client($path, $parts['host'], $port);
  }

  // END
  //-------------------------------------
  //  Set Timeout
  //-------------------------------------

  function timeout($seconds = 5) {
    if (!is_null($this->client) && is_int($seconds)) {
      $this->client->timeout = $seconds;
    }
  }

  // END
  //-------------------------------------
  //  Set Methods
  //-------------------------------------

  function method($function) {
    $this->method = $function;
  }

  // END
  //-------------------------------------
  //  Take Array of Data and Create Objects
  //-------------------------------------

  function request($incoming) {
    if (!is_array($incoming)) {
      // Send Error
    }

    $this->data = array();

    foreach ($incoming as $key => $value) {
      $this->data[$key] = $this->values_parsing($value);
    }
  }

  // END
  //-------------------------------------
  //  Set Debug
  //-------------------------------------

  function set_debug($flag = TRUE) {
    $this->debug = ($flag == TRUE) ? TRUE : FALSE;
  }

  //-------------------------------------
  //  Values Parsing
  //-------------------------------------

  function values_parsing($value, $return = FALSE) {
    if (is_array($value) && array_key_exists(0, $value)) {
      if (!isset($value['1']) OR (!isset($this->xmlrpcTypes[$value['1']]))) {
        if (is_array($value[0])) {
          $temp = new XML_RPC_Values($value['0'], 'array');
        } else {
          $temp = new XML_RPC_Values($value['0'], 'string');
        }
      } elseif (is_array($value['0']) && ($value['1'] == 'struct' OR $value['1'] == 'array')) {
        while (list($k) = each($value['0'])) {
          $value['0'][$k] = $this->values_parsing($value['0'][$k], TRUE);
        }

        $temp = new XML_RPC_Values($value['0'], $value['1']);
      } else {
        $temp = new XML_RPC_Values($value['0'], $value['1']);
      }
    } else {
      $temp = new XML_RPC_Values($value, 'string');
    }

    return $temp;
  }

  // END
  //-------------------------------------
  //  Sends XML-RPC Request
  //-------------------------------------

  function send_request() {
    $this->message = new XML_RPC_Message($this->method, $this->data);
    $this->message->debug = $this->debug;

    if (!$this->result = $this->client->send($this->message)) {
      $this->error = $this->result->errstr;
      return FALSE;
    } elseif (!is_object($this->result->val)) {
      $this->error = $this->result->errstr;
      return FALSE;
    }

    $this->response = $this->result->decode();

    return TRUE;
  }

  // END
  //-------------------------------------
  //  Returns Error
  //-------------------------------------

  function display_error() {
    return $this->error;
  }

  // END
  //-------------------------------------
  //  Returns Remote Server Response
  //-------------------------------------

  function display_response() {
    return $this->response;
  }

  // END
  //-------------------------------------
  //  Sends an Error Message for Server Request
  //-------------------------------------

  function send_error_message($number, $message) {
    return new XML_RPC_Response('0', $number, $message);
  }

  // END
  //-------------------------------------
  //  Send Response for Server Request
  //-------------------------------------

  function send_response($response) {
    // $response should be array of values, which will be parsed
    // based on their data and type into a valid group of XML-RPC values

    $response = $this->values_parsing($response);

    return new XML_RPC_Response($response);
  }

  // END
}

// END XML_RPC Class

/**
 * XML-RPC Client class
 *
 * @category	XML-RPC
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/libraries/xmlrpc.html
 */
class XML_RPC_Client extends CI_Xmlrpc {

  var $path = '';
  var $server = '';
  var $port = 80;
  var $errno = '';
  var $errstring = '';
  var $timeout = 5;
  var $no_multicall = FALSE;

  public function __construct($path, $server, $port = 80) {
    parent::__construct();

    $this->port = $port;
    $this->server = $server;
    $this->path = $path;
  }

  function send($msg) {
    if (is_array($msg)) {
      // Multi-call disabled
      $r = new XML_RPC_Response(0, $this->xmlrpcerr['multicall_recursion'], $this->xmlrpcstr['multicall_recursion']);
      return $r;
    }

    return $this->sendPayload($msg);
  }

  function sendPayload($msg) {
    $fp = @fsockopen($this->server, $this->port, $this->errno, $this->errstr, $this->timeout);

    if (!is_resource($fp)) {
      error_log($this->xmlrpcstr['http_error']);
      $r = new XML_RPC_Response(0, $this->xmlrpcerr['http_error'], $this->xmlrpcstr['http_error']);
      return $r;
    }

    if (empty($msg->payload)) {
      // $msg = XML_RPC_Messages
      $msg->createPayload();
    }

    $r = "\r\n";
    $op = "POST {$this->path} HTTP/1.0$r";
    $op .= "Host: {$this->server}$r";
    $op .= "Content-Type: text/xml$r";
    $op .= "User-Agent: {$this->xmlrpcName}$r";
    $op .= "Content-Length: " . strlen($msg->payload) . "$r$r";
    $op .= $msg->payload;


    if (!fputs($fp, $op, strlen($op))) {
      error_log($this->xmlrpcstr['http_error']);
      $r = new XML_RPC_Response(0, $this->xmlrpcerr['http_error'], $this->xmlrpcstr['http_error']);
      return $r;
    }
    $resp = $msg->parseResponse($fp);
    fclose($fp);
    return $resp;
  }

}

// end class XML_RPC_Client

/**
 * XML-RPC Response class
 *
 * @category	XML-RPC
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/libraries/xmlrpc.html
 */
class XML_RPC_Response {

  var $val = 0;
  var $errno = 0;
  var $errstr = '';
  var $headers = array();
  var $xss_clean = TRUE;

  public function __construct($val, $code = 0, $fstr = '') {
    if ($code != 0) {
      // error
      $this->errno = $code;
      $this->errstr = htmlentities($fstr);
    } else if (!is_object($val)) {
      // programmer error, not an object
      error_log("Invalid type '" . gettype($val) . "' (value: $val) passed to XML_RPC_Response.  Defaulting to empty value.");
      $this->val = new XML_RPC_Values();
    } else {
      $this->val = $val;
    }
  }

  function faultCode() {
    return $this->errno;
  }

  function faultString() {
    return $this->errstr;
  }

  function value() {
    return $this->val;
  }

  function prepare_response() {
    $result = "<methodResponse>\n";
    if ($this->errno) {
      $result .= '<fault>
	<value>
		<struct>
			<member>
				<name>faultCode</name>
				<value><int>' . $this->errno . '</int></value>
			</member>
			<member>
				<name>faultString</name>
				<value><string>' . $this->errstr . '</string></value>
			</member>
		</struct>
	</value>
</fault>';
    } else {
      $result .= "<params>\n<param>\n" .
              $this->val->serialize_class() .
              "</param>\n</params>";
    }
    $result .= "\n</methodResponse>";
    return $result;
  }

  function decode($array = FALSE) {
    $CI = & get_instance();

    if ($array !== FALSE && is_array($array)) {
      while (list($key) = each($array)) {
        if (is_array($array[$key])) {
          $array[$key] = $this->decode($array[$key]);
        } else {
          $array[$key] = ($this->xss_clean) ? $CI->security->xss_clean($array[$key]) : $array[$key];
        }
      }

      $result = $array;
    } else {
      $result = $this->xmlrpc_decoder($this->val);

      if (is_array($result)) {
        $result = $this->decode($result);
      } else {
        $result = ($this->xss_clean) ? $CI->security->xss_clean($result) : $result;
      }
    }

    return $result;
  }

  //-------------------------------------
  //  XML-RPC Object to PHP Types
  //-------------------------------------

  function xmlrpc_decoder($xmlrpc_val) {
    $kind = $xmlrpc_val->kindOf();

    if ($kind == 'scalar') {
      return $xmlrpc_val->scalarval();
    } elseif ($kind == 'array') {
      reset($xmlrpc_val->me);
      list($a, $b) = each($xmlrpc_val->me);
      $size = count($b);

      $arr = array();

      for ($i = 0; $i < $size; $i++) {
        $arr[] = $this->xmlrpc_decoder($xmlrpc_val->me['array'][$i]);
      }
      return $arr;
    } elseif ($kind == 'struct') {
      reset($xmlrpc_val->me['struct']);
      $arr = array();

      while (list($key, $value) = each($xmlrpc_val->me['struct'])) {
        $arr[$key] = $this->xmlrpc_decoder($value);
      }
      return $arr;
    }
  }

  //-------------------------------------
  //  ISO-8601 time to server or UTC time
  //-------------------------------------

  function iso8601_decode($time, $utc = 0) {
    // return a timet in the localtime, or UTC
    $t = 0;
    if (preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})/', $time, $regs)) {
      $fnc = ($utc == 1) ? 'gmmktime' : 'mktime';
      $t = $fnc($regs[4], $regs[5], $regs[6], $regs[2], $regs[3], $regs[1]);
    }
    return $t;
  }

}

// End Response Class

/**
 * XML-RPC Message class
 *
 * @category	XML-RPC
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/libraries/xmlrpc.html
 */
class XML_RPC_Message extends CI_Xmlrpc {

  var $payload;
  var $method_name;
  var $params = array();
  var $xh = array();

  public function __construct($method, $pars = 0) {
    parent::__construct();

    $this->method_name = $method;
    if (is_array($pars) && count($pars) > 0) {
      for ($i = 0; $i < count($pars); $i++) {
        // $pars[$i] = XML_RPC_Values
        $this->params[] = $pars[$i];
      }
    }
  }

  //-------------------------------------
  //  Create Payload to Send
  //-------------------------------------

  function createPayload() {
    $this->payload = "<?xml version=\"1.0\"?" . ">\r\n<methodCall>\r\n";
    $this->payload .= '<methodName>' . $this->method_name . "</methodName>\r\n";
    $this->payload .= "<params>\r\n";

    for ($i = 0; $i < count($this->params); $i++) {
      // $p = XML_RPC_Values
      $p = $this->params[$i];
      $this->payload .= "<param>\r\n" . $p->serialize_class() . "</param>\r\n";
    }

    $this->payload .= "</params>\r\n</methodCall>\r\n";
  }

  //-------------------------------------
  //  Parse External XML-RPC Server's Response
  //-------------------------------------

  function parseResponse($fp) {
    $data = '';

    while ($datum = fread($fp, 4096)) {
      $data .= $datum;
    }

    //-------------------------------------
    //  DISPLAY HTTP CONTENT for DEBUGGING
    //-------------------------------------

    if ($this->debug === TRUE) {
      echo "<pre>";
      echo "---DATA---\n" . htmlspecialchars($data) . "\n---END DATA---\n\n";
      echo "</pre>";
    }

    //-------------------------------------
    //  Check for data
    //-------------------------------------

    if ($data == "") {
      error_log($this->xmlrpcstr['no_data']);
      $r = new XML_RPC_Response(0, $this->xmlrpcerr['no_data'], $this->xmlrpcstr['no_data']);
      return $r;
    }


    //-------------------------------------
    //  Check for HTTP 200 Response
    //-------------------------------------

    if (strncmp($data, 'HTTP', 4) == 0 && !preg_match('/^HTTP\/[0-9\.]+ 200 /', $data)) {
      $errstr = substr($data, 0, strpos($data, "\n") - 1);
      $r = new XML_RPC_Response(0, $this->xmlrpcerr['http_error'], $this->xmlrpcstr['http_error'] . ' (' . $errstr . ')');
      return $r;
    }

    //-------------------------------------
    //  Create and Set Up XML Parser
    //-------------------------------------

    $parser = xml_parser_create($this->xmlrpc_defencoding);

    $this->xh[$parser] = array();
    $this->xh[$parser]['isf'] = 0;
    $this->xh[$parser]['ac'] = '';
    $this->xh[$parser]['headers'] = array();
    $this->xh[$parser]['stack'] = array();
    $this->xh[$parser]['valuestack'] = array();
    $this->xh[$parser]['isf_reason'] = 0;

    xml_set_object($parser, $this);
    xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
    xml_set_element_handler($parser, 'open_tag', 'closing_tag');
    xml_set_character_data_handler($parser, 'character_data');
    //xml_set_default_handler($parser, 'default_handler');
    //-------------------------------------
    //  GET HEADERS
    //-------------------------------------

    $lines = explode("\r\n", $data);
    while (($line = array_shift($lines))) {
      if (strlen($line) < 1) {
        break;
      }
      $this->xh[$parser]['headers'][] = $line;
    }
    $data = implode("\r\n", $lines);


    //-------------------------------------
    //  PARSE XML DATA
    //-------------------------------------

    if (!xml_parse($parser, $data, count($data))) {
      $errstr = sprintf('XML error: %s at line %d', xml_error_string(xml_get_error_code($parser)), xml_get_current_line_number($parser));
      //error_log($errstr);
      $r = new XML_RPC_Response(0, $this->xmlrpcerr['invalid_return'], $this->xmlrpcstr['invalid_return']);
      xml_parser_free($parser);
      return $r;
    }
    xml_parser_free($parser);

    // ---------------------------------------
    //  Got Ourselves Some Badness, It Seems
    // ---------------------------------------

    if ($this->xh[$parser]['isf'] > 1) {
      if ($this->debug === TRUE) {
        echo "---Invalid Return---\n";
        echo $this->xh[$parser]['isf_reason'];
        echo "---Invalid Return---\n\n";
      }

      $r = new XML_RPC_Response(0, $this->xmlrpcerr['invalid_return'], $this->xmlrpcstr['invalid_return'] . ' ' . $this->xh[$parser]['isf_reason']);
      return $r;
    } elseif (!is_object($this->xh[$parser]['value'])) {
      $r = new XML_RPC_Response(0, $this->xmlrpcerr['invalid_return'], $this->xmlrpcstr['invalid_return'] . ' ' . $this->xh[$parser]['isf_reason']);
      return $r;
    }

    //-------------------------------------
    //  DISPLAY XML CONTENT for DEBUGGING
    //-------------------------------------

    if ($this->debug === TRUE) {
      echo "<pre>";

      if (count($this->xh[$parser]['headers'] > 0)) {
        echo "---HEADERS---\n";
        foreach ($this->xh[$parser]['headers'] as $header) {
          echo "$header\n";
        }
        echo "---END HEADERS---\n\n";
      }

      echo "---DATA---\n" . htmlspecialchars($data) . "\n---END DATA---\n\n";

      echo "---PARSED---\n";
      var_dump($this->xh[$parser]['value']);
      echo "\n---END PARSED---</pre>";
    }

    //-------------------------------------
    //  SEND RESPONSE
    //-------------------------------------

    $v = $this->xh[$parser]['value'];

    if ($this->xh[$parser]['isf']) {
      $errno_v = $v->me['struct']['faultCode'];
      $errstr_v = $v->me['struct']['faultString'];
      $errno = $errno_v->scalarval();

      if ($errno == 0) {
        // FAULT returned, errno needs to reflect that
        $errno = -1;
      }

      $r = new XML_RPC_Response($v, $errno, $errstr_v->scalarval());
    } else {
      $r = new XML_RPC_Response($v);
    }

    $r->headers = $this->xh[$parser]['headers'];
    return $r;
  }

  // ------------------------------------
  //  Begin Return Message Parsing section
  // ------------------------------------
  // quick explanation of components:
  //   ac - used to accumulate values
  //   isf - used to indicate a fault
  //   lv - used to indicate "looking for a value": implements
  //		the logic to allow values with no types to be strings
  //   params - used to store parameters in method calls
  //   method - used to store method name
  //	 stack - array with parent tree of the xml element,
  //			 used to validate the nesting of elements
  //-------------------------------------
  //  Start Element Handler
  //-------------------------------------

  function open_tag($the_parser, $name, $attrs) {
    // If invalid nesting, then return
    if ($this->xh[$the_parser]['isf'] > 1)
      return;

    // Evaluate and check for correct nesting of XML elements

    if (count($this->xh[$the_parser]['stack']) == 0) {
      if ($name != 'METHODRESPONSE' && $name != 'METHODCALL') {
        $this->xh[$the_parser]['isf'] = 2;
        $this->xh[$the_parser]['isf_reason'] = 'Top level XML-RPC element is missing';
        return;
      }
    } else {
      // not top level element: see if parent is OK
      if (!in_array($this->xh[$the_parser]['stack'][0], $this->valid_parents[$name], TRUE)) {
        $this->xh[$the_parser]['isf'] = 2;
        $this->xh[$the_parser]['isf_reason'] = "XML-RPC element $name cannot be child of " . $this->xh[$the_parser]['stack'][0];
        return;
      }
    }

    switch ($name) {
      case 'STRUCT':
      case 'ARRAY':
        // Creates array for child elements

        $cur_val = array('value' => array(),
            'type' => $name);

        array_unshift($this->xh[$the_parser]['valuestack'], $cur_val);
        break;
      case 'METHODNAME':
      case 'NAME':
        $this->xh[$the_parser]['ac'] = '';
        break;
      case 'FAULT':
        $this->xh[$the_parser]['isf'] = 1;
        break;
      case 'PARAM':
        $this->xh[$the_parser]['value'] = NULL;
        break;
      case 'VALUE':
        $this->xh[$the_parser]['vt'] = 'value';
        $this->xh[$the_parser]['ac'] = '';
        $this->xh[$the_parser]['lv'] = 1;
        break;
      case 'I4':
      case 'INT':
      case 'STRING':
      case 'BOOLEAN':
      case 'DOUBLE':
      case 'DATETIME.ISO8601':
      case 'BASE64':
        if ($this->xh[$the_parser]['vt'] != 'value') {
          //two data elements inside a value: an error occurred!
          $this->xh[$the_parser]['isf'] = 2;
          $this->xh[$the_parser]['isf_reason'] = "'Twas a $name element following a " . $this->xh[$the_parser]['vt'] . " element inside a single value";
          return;
        }

        $this->xh[$the_parser]['ac'] = '';
        break;
      case 'MEMBER':
        // Set name of <member> to nothing to prevent errors later if no <name> is found
        $this->xh[$the_parser]['valuestack'][0]['name'] = '';

        // Set NULL value to check to see if value passed for this param/member
        $this->xh[$the_parser]['value'] = NULL;
        break;
      case 'DATA':
      case 'METHODCALL':
      case 'METHODRESPONSE':
      case 'PARAMS':
        // valid elements that add little to processing
        break;
      default:
        /// An Invalid Element is Found, so we have trouble
        $this->xh[$the_parser]['isf'] = 2;
        $this->xh[$the_parser]['isf_reason'] = "Invalid XML-RPC element found: $name";
        break;
    }

    // Add current element name to stack, to allow validation of nesting
    array_unshift($this->xh[$the_parser]['stack'], $name);

    if ($name != 'VALUE')
      $this->xh[$the_parser]['lv'] = 0;
  }

  // END
  //-------------------------------------
  //  End Element Handler
  //-------------------------------------

  function closing_tag($the_parser, $name) {
    if ($this->xh[$the_parser]['isf'] > 1)
      return;

    // Remove current element from stack and set variable
    // NOTE: If the XML validates, then we do not have to worry about
    // the opening and closing of elements.  Nesting is checked on the opening
    // tag so we be safe there as well.

    $curr_elem = array_shift($this->xh[$the_parser]['stack']);

    switch ($name) {
      case 'STRUCT':
      case 'ARRAY':
        $cur_val = array_shift($this->xh[$the_parser]['valuestack']);
        $this->xh[$the_parser]['value'] = (!isset($cur_val['values'])) ? array() : $cur_val['values'];
        $this->xh[$the_parser]['vt'] = strtolower($name);
        break;
      case 'NAME':
        $this->xh[$the_parser]['valuestack'][0]['name'] = $this->xh[$the_parser]['ac'];
        break;
      case 'BOOLEAN':
      case 'I4':
      case 'INT':
      case 'STRING':
      case 'DOUBLE':
      case 'DATETIME.ISO8601':
      case 'BASE64':
        $this->xh[$the_parser]['vt'] = strtolower($name);

        if ($name == 'STRING') {
          $this->xh[$the_parser]['value'] = $this->xh[$the_parser]['ac'];
        } elseif ($name == 'DATETIME.ISO8601') {
          $this->xh[$the_parser]['vt'] = $this->xmlrpcDateTime;
          $this->xh[$the_parser]['value'] = $this->xh[$the_parser]['ac'];
        } elseif ($name == 'BASE64') {
          $this->xh[$the_parser]['value'] = base64_decode($this->xh[$the_parser]['ac']);
        } elseif ($name == 'BOOLEAN') {
          // Translated BOOLEAN values to TRUE AND FALSE
          if ($this->xh[$the_parser]['ac'] == '1') {
            $this->xh[$the_parser]['value'] = TRUE;
          } else {
            $this->xh[$the_parser]['value'] = FALSE;
          }
        } elseif ($name == 'DOUBLE') {
          // we have a DOUBLE
          // we must check that only 0123456789-.<space> are characters here
          if (!preg_match('/^[+-]?[eE0-9\t \.]+$/', $this->xh[$the_parser]['ac'])) {
            $this->xh[$the_parser]['value'] = 'ERROR_NON_NUMERIC_FOUND';
          } else {
            $this->xh[$the_parser]['value'] = (double) $this->xh[$the_parser]['ac'];
          }
        } else {
          // we have an I4/INT
          // we must check that only 0123456789-<space> are characters here
          if (!preg_match('/^[+-]?[0-9\t ]+$/', $this->xh[$the_parser]['ac'])) {
            $this->xh[$the_parser]['value'] = 'ERROR_NON_NUMERIC_FOUND';
          } else {
            $this->xh[$the_parser]['value'] = (int) $this->xh[$the_parser]['ac'];
          }
        }
        $this->xh[$the_parser]['ac'] = '';
        $this->xh[$the_parser]['lv'] = 3; // indicate we've found a value
        break;
      case 'VALUE':
        // This if() detects if no scalar was inside <VALUE></VALUE>
        if ($this->xh[$the_parser]['vt'] == 'value') {
          $this->xh[$the_parser]['value'] = $this->xh[$the_parser]['ac'];
          $this->xh[$the_parser]['vt'] = $this->xmlrpcString;
        }

        // build the XML-RPC value out of the data received, and substitute it
        $temp = new XML_RPC_Values($this->xh[$the_parser]['value'], $this->xh[$the_parser]['vt']);

        if (count($this->xh[$the_parser]['valuestack']) && $this->xh[$the_parser]['valuestack'][0]['type'] == 'ARRAY') {
          // Array
          $this->xh[$the_parser]['valuestack'][0]['values'][] = $temp;
        } else {
          // Struct
          $this->xh[$the_parser]['value'] = $temp;
        }
        break;
      case 'MEMBER':
        $this->xh[$the_parser]['ac'] = '';

        // If value add to array in the stack for the last element built
        if ($this->xh[$the_parser]['value']) {
          $this->xh[$the_parser]['valuestack'][0]['values'][$this->xh[$the_parser]['valuestack'][0]['name']] = $this->xh[$the_parser]['value'];
        }
        break;
      case 'DATA':
        $this->xh[$the_parser]['ac'] = '';
        break;
      case 'PARAM':
        if ($this->xh[$the_parser]['value']) {
          $this->xh[$the_parser]['params'][] = $this->xh[$the_parser]['value'];
        }
        break;
      case 'METHODNAME':
        $this->xh[$the_parser]['method'] = ltrim($this->xh[$the_parser]['ac']);
        break;
      case 'PARAMS':
      case 'FAULT':
      case 'METHODCALL':
      case 'METHORESPONSE':
        // We're all good kids with nuthin' to do
        break;
      default:
        // End of an Invalid Element.  Taken care of during the opening tag though
        break;
    }
  }

  //-------------------------------------
  //  Parses Character Data
  //-------------------------------------

  function character_data($the_parser, $data) {
    if ($this->xh[$the_parser]['isf'] > 1)
      return; // XML Fault found already







      
// If a value has not been found
    if ($this->xh[$the_parser]['lv'] != 3) {
      if ($this->xh[$the_parser]['lv'] == 1) {
        $this->xh[$the_parser]['lv'] = 2; // Found a value
      }

      if (!@isset($this->xh[$the_parser]['ac'])) {
        $this->xh[$the_parser]['ac'] = '';
      }

      $this->xh[$the_parser]['ac'] .= $data;
    }
  }

  function addParam($par) {
    $this->params[] = $par;
  }

  function output_parameters($array = FALSE) {
    $CI = & get_instance();

    if ($array !== FALSE && is_array($array)) {
      while (list($key) = each($array)) {
        if (is_array($array[$key])) {
          $array[$key] = $this->output_parameters($array[$key]);
        } else {
          // 'bits' is for the MetaWeblog API image bits
          // @todo - this needs to be made more general purpose
          $array[$key] = ($key == 'bits' OR $this->xss_clean == FALSE) ? $array[$key] : $CI->security->xss_clean($array[$key]);
        }
      }

      $parameters = $array;
    } else {
      $parameters = array();

      for ($i = 0; $i < count($this->params); $i++) {
        $a_param = $this->decode_message($this->params[$i]);

        if (is_array($a_param)) {
          $parameters[] = $this->output_parameters($a_param);
        } else {
          $parameters[] = ($this->xss_clean) ? $CI->security->xss_clean($a_param) : $a_param;
        }
      }
    }

    return $parameters;
  }

  function decode_message($param) {
    $kind = $param->kindOf();

    if ($kind == 'scalar') {
      return $param->scalarval();
    } elseif ($kind == 'array') {
      reset($param->me);
      list($a, $b) = each($param->me);

      $arr = array();

      for ($i = 0; $i < count($b); $i++) {
        $arr[] = $this->decode_message($param->me['array'][$i]);
      }

      return $arr;
    } elseif ($kind == 'struct') {
      reset($param->me['struct']);

      $arr = array();

      while (list($key, $value) = each($param->me['struct'])) {
        $arr[$key] = $this->decode_message($value);
      }

      return $arr;
    }
  }

}

// End XML_RPC_Messages class

/**
 * XML-RPC Values class
 *
 * @category	XML-RPC
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/libraries/xmlrpc.html
 */
class XML_RPC_Values extends CI_Xmlrpc {

  var $me = array();
  var $mytype = 0;

  public function __construct($val = -1, $type = '') {
    parent::__construct();

    if ($val != -1 OR $type != '') {
      $type = $type == '' ? 'string' : $type;

      if ($this->xmlrpcTypes[$type] == 1) {
        $this->addScalar($val, $type);
      } elseif ($this->xmlrpcTypes[$type] == 2) {
        $this->addArray($val);
      } elseif ($this->xmlrpcTypes[$type] == 3) {
        $this->addStruct($val);
      }
    }
  }

  function addScalar($val, $type = 'string') {
    $typeof = $this->xmlrpcTypes[$type];

    if ($this->mytype == 1) {
      echo '<strong>XML_RPC_Values</strong>: scalar can have only one value<br />';
      return 0;
    }

    if ($typeof != 1) {
      echo '<strong>XML_RPC_Values</strong>: not a scalar type (${typeof})<br />';
      return 0;
    }

    if ($type == $this->xmlrpcBoolean) {
      if (strcasecmp($val, 'true') == 0 OR $val == 1 OR ($val == true && strcasecmp($val, 'false'))) {
        $val = 1;
      } else {
        $val = 0;
      }
    }

    if ($this->mytype == 2) {
      // adding to an array here
      $ar = $this->me['array'];
      $ar[] = new XML_RPC_Values($val, $type);
      $this->me['array'] = $ar;
    } else {
      // a scalar, so set the value and remember we're scalar
      $this->me[$type] = $val;
      $this->mytype = $typeof;
    }
    return 1;
  }

  function addArray($vals) {
    if ($this->mytype != 0) {
      echo '<strong>XML_RPC_Values</strong>: already initialized as a [' . $this->kindOf() . ']<br />';
      return 0;
    }

    $this->mytype = $this->xmlrpcTypes['array'];
    $this->me['array'] = $vals;
    return 1;
  }

  function addStruct($vals) {
    if ($this->mytype != 0) {
      echo '<strong>XML_RPC_Values</strong>: already initialized as a [' . $this->kindOf() . ']<br />';
      return 0;
    }
    $this->mytype = $this->xmlrpcTypes['struct'];
    $this->me['struct'] = $vals;
    return 1;
  }

  function kindOf() {
    switch ($this->mytype) {
      case 3:
        return 'struct';
        break;
      case 2:
        return 'array';
        break;
      case 1:
        return 'scalar';
        break;
      default:
        return 'undef';
    }
  }

  function serializedata($typ, $val) {
    $rs = '';

    switch ($this->xmlrpcTypes[$typ]) {
      case 3:
        // struct
        $rs .= "<struct>\n";
        reset($val);
        while (list($key2, $val2) = each($val)) {
          $rs .= "<member>\n<name>{$key2}</name>\n";
          $rs .= $this->serializeval($val2);
          $rs .= "</member>\n";
        }
        $rs .= '</struct>';
        break;
      case 2:
        // array
        $rs .= "<array>\n<data>\n";
        for ($i = 0; $i < count($val); $i++) {
          $rs .= $this->serializeval($val[$i]);
        }
        $rs.="</data>\n</array>\n";
        break;
      case 1:
        // others
        switch ($typ) {
          case $this->xmlrpcBase64:
            $rs .= "<{$typ}>" . base64_encode((string) $val) . "</{$typ}>\n";
            break;
          case $this->xmlrpcBoolean:
            $rs .= "<{$typ}>" . ((bool) $val ? '1' : '0') . "</{$typ}>\n";
            break;
          case $this->xmlrpcString:
            $rs .= "<{$typ}>" . htmlspecialchars((string) $val) . "</{$typ}>\n";
            break;
          default:
            $rs .= "<{$typ}>{$val}</{$typ}>\n";
            break;
        }
      default:
        break;
    }
    return $rs;
  }

  function serialize_class() {
    return $this->serializeval($this);
  }

  function serializeval($o) {
    $ar = $o->me;
    reset($ar);

    list($typ, $val) = each($ar);
    $rs = "<value>\n" . $this->serializedata($typ, $val) . "</value>\n";
    return $rs;
  }

  function scalarval() {
    reset($this->me);
    list($a, $b) = each($this->me);
    return $b;
  }

  //-------------------------------------
  // Encode time in ISO-8601 form.
  //-------------------------------------
  // Useful for sending time in XML-RPC

  function iso8601_encode($time, $utc = 0) {
    if ($utc == 1) {
      $t = strftime("%Y%m%dT%H:%i:%s", $time);
    } else {
      if (function_exists('gmstrftime'))
        $t = gmstrftime("%Y%m%dT%H:%i:%s", $time);
      else
        $t = strftime("%Y%m%dT%H:%i:%s", $time - date('Z'));
    }
    return $t;
  }

}

// END XML_RPC_Values Class

/* End of file Xmlrpc.php */
/* Location: ./system/libraries/Xmlrpc.php */